Home / 28,938.10-43,409.55-9,216.10

Finding the Fourth Proportional to 28,938.10, 43,409.55 and 9,216.10

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Solution

The fourth proportional to 28,938.10, 43,409.55 and 9,216.10 is: 13,824.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,938.10 : 43,409.55 = 9,216.10 : x
  2. Step 2: Convert to fraction form
    28,938.10/43,409.55 = 9,216.10/x
  3. Step 3: Cross multiply
    28,938.10x = 43,409.55 × 9,216.10
  4. Step 4: Simplify right side
    28,938.10x = 400,066,753.76
  5. Step 5: Solve for x
    x = 400,066,753.76/28,938.10
  6. Step 6: Final answer
    x = 13,824.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.